National Politics & Government At $11 Billion And Counting, Trump's Border Wall Would Be The World's Most Expensive 4:14pm January 17, 2020 by John Burnett Politics National Security National Share URL copied to clipboard! Copyright 2020 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered Politics & Government Trump rallies in Michigan as Biden isolates Science Shortwave podcast explores Pluto's planetary demotion 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate